Lubricating apparatus



Nov. 23,1925. 1,607,855

F. D. WINKLEY LUBRICATING APPARATUS Filed March 19. 1.920

In u e -Tonr F m nk DWm K1 Patented Nov. 23, '1926,

UNITED sT rRANx D. WIN'KLEY, or MADISON, WrscoNsIN, AssIeNon, 'ro-THE BAssrcxMANUrAcrUaINe COMPANY, A coaroaA LBRICATING APPARATUS..

A'rEs PATENT OFFICE.

BY MEsNE ASSIGNMENTS,

TIoN or DELAWARE.

Application lcd March 19, 1920. ,Serial No. 367,198.

My invention relates to improvements in lubricatlng -apparatus and is es ecially concerned. with the improvement o lubricating apparatus of that type in which the bear'-l lubricated are each ings of a machine to be provided witha lubricantreceiving member or nipple to which4 lubricant may be supplied, under pressure, by a lubricant pump or compressor having a discharge conduit provided member adapted to be Idetachably connected to the nipples.

, The objects of my invention are--V First; to prov-ide a novel type of compresser for supplying lubricant to lubricant receiving members or. nipples comprising.

means -whereby the lubricant supplied to the nipples can be placed under exceedingly high pressures. Y

Second; to provide alubrica'nt compressor of the type described, comprising a dis- `charge' conduit having a couphng member at the free end thereof comprising means accompanying drawings,

my apparatus, and

for preventing the escape of lubricant from the coupling member when vit is detached.

from the nipples, the compressor comprising means for relieving the pressure on the coupling member so that there will be no danger of the lubricant being forced therethrough 'when the coupling member is detached from the nipple.' 4

Third; lto provide a compressor of the type described comprising a receptacle for containing-the lubricant 'to be supplied to the nipples, being'located in said receptacle and comprising means whereby the discharge 'conduit can be -vented intothe receptacle to relieve the pressure upon the coupling member, and Fourth; to provide a compressorvv of the type described which is simple in construction, economical and easy to operate.-

Other objects will appear as this description progresses, reference being had tothe in which--vl Figure lis a plan view of my compressor, portions thereof being broken away. v e Figure 2 is aside elevation with portions broken away. f

Figure 3 is a central longitudinal section on an enlarged' scale through a 'portion of at its free end with a coupling1rthe pump of said compressor to manufacture, durable improved one type of coup Figure 4 is an II may embody in my apparatus.

Referring to the drawings, the reference character 5 indicates a container or recepwith a drawn s flange 7 ofA which may tacle for holding which is to be forc ceiving nipples. lably drawn from heet metal closure 6, the

be soldered or othera supply of lubricant This receptacle is prefer-- ,sheet metal and provided wise secured to the upper end of the receptacle. The closure is provided with a lling opening which may be of any The means which is closed by the cap 8 which suitable construction.

I prefer for forcing .the

lubricant into the lubricant receiving mpples comprises a body riser l() extending secondopening in the closure 6: Theupper end of the riser vis provided. with an out` ed into the lubricant remember 9 having a upwardly and through a wardly extending flange 11, which maybe secured to the closure 6 by means of screws 12 or in any ot flange being provi wardly extending her suitable manner, the ded with a circular downboss 13 fitting the opening in the closure. A plurality of bores 14, 15,

and 16, formed in the riser, through provide a body member and the discharge passageway which the lubricant is discharged into the iexible discharge'conduit 17 formed of suitable flexible metallic hose and having the coupling member 18 at the 'free end thereof. which-is adapted to be connected with the nipples to which the lubricant is supplied. Thebody member is provide with a plurality of bores V19 and 2O com- 4municating -w the intake pa The lower end of communicates with ceptaclev 5 through which is provid place by means tending to prevent into vthe compressor.

atter, in the 1ub`r1 ends of the intakeA ways are connected by ith each other ssageway of the compressor.

and forming the intake passageway the interior of the rethe enlarged bore 21,

ed with a screen 22 held in the split ring 23 and dirt and other foreign cant, from being drawn- The inner or adjacent and discharge passagethe cylinder 24, in

which is reciprocably mounted the plung- 25. A valve seat 26l is passageway adjace des a seat for the c formed in the discharge t the lower end and pro- `k valve 27, the move- I it ment of which is limited b tending downwardly from the screw plug 28 at the upper end of the bore v15.

For the purpose of relieving the pressure in the discharge conduit and in the. coupling member, for a .reason which will he referred to later on, l provide a by-pass 29 around the check valve,iconnecting the discharge passageway with the intake passageway through the cylinder.

IThe uppervend of the plunger 25, which is reduced in cross-section, extends through a suitable hearing in the Hang@ 17. For forcing the plunger inwardly to displace the lubricant lfrom the cylinder 24, l provide two sheet metal hand grips which are concaveconvex in cross section, with their concave sides turned towards each other. One of these hand grips 30, has one of its ends 31 turned down and outwardly and secured to the upper end of the riser l -by means of a screw 32 or in any other suitable way. Thel opposite end of the hand gripis reversely bent upon itself, as shown at 33 and 34, to

form a support for the pivot pin 35, the

portion 34 being continued downwardly and bentinwardly as shown at 36. A screw 37 passes through the portion 36 and into the closure 6 for securing thisend of the hand grip to the closure. A second hand grip 38; .tends substantially parallel with theu han grip 30 and is provided at one Vend with bearings 39 journaled on the pin 35 and an extension 40 adapted to co-act with the downturned portion of thc f rrip 30 to provide a stop for limitingthe movement of the hand grip 38. The upper end of the plunger 25 extends through an opening in the hand grip 30 andcontacts with the inner side of the hand grip 38, being held in this position b v aspring 41 confined between the upper e'nd of the walls of the cylinder 24 and a collar 42, secured to the plunger by a pin 43, the,

spring 41 tending to retract. the plunger from the cylinder. t v

In Figure 4 I have illustrated the details of construction of a couplingr member which may form a portion o f my improved lubrieating apparatus. This coupling -member comprises, in general, a sleeve 45, one end 46 of which is soldered or otherwise secured to the free end of the discharge conduit 17 and the other end of which receives the ilexible gasket or cup leather 47, of leather or other suitable material, which is provided with a central orifice or aperture 48, registering with the opening in the end of the nipple 49, which is closed by a springpressed closure 50. An inwardly .extending flange 51 provides a discharge port-52 and a valve seat. 53, with which the valve 54 coacts to prevent the discharge of lubricant from the coupling member. The ste'm 55 of the valve is smaller in diameter than thefdischarge port 52 and its outer end is hollow,

the rod 27 exas shown at 56, the walls of the hollow portion of said stem being provided with openings 57 for the passageiof lubricant therethrough. I The outer end of the valve stem is swedged over onto a washer 58 which is held against the gasketor cup leather 47 by the compression spring 59, one end of which abuts against the said washer andfthe other end of which abuts against the outer side of the Harige 51,. A second sleeve, formed of the twoparts 60 and 6l, threaded together at, 62, is rotatably mounted upon the sleeve 45 and is prevented from being displaced therefrom by the annular rib 63 which is received in an annular groove formed by the two portions of the outersleeve. The diameter of the bore of the outer sleeve at its end is slightly less than the diameter of the bore of the outer end of the inner sleeve, thereby providing a shoulder 64 which act-s as a stop to limit the movement of the gasket 47. This result is also obtained by engagement of the valve 54 with its seat.

The nipple 49 has a' pin 65 extending from both sides thereof, the ends of which are adapted to co-act with the bayonet slots 66 'receptacle can he carried by the operator,

the hand grip 30 acting as. a handle for supporting the receptacle. The operator carries the receptacle with its discharge conduit about the machine to be lubricated and displaced from its seat as shown in I4`igu're 4. The operator, by tightening'his grip upon the hand* grips v30 and 3S-causes the plunger 25 to be forced inwardly thereby forcing the lubricant. from the cylinder 24 which had previously flowed into the cylinder 24 from the receptacle through the intake passageway 19. Upon releasing his grip on thg hand grip 38, the spring 41 retractsthe plunger, more lubricantflows into the cylinder from the receptacle, the `lubricant forced intorthe discharge conduit ybeing prevented from backward flow by the check valve 27 and from flowing into the cylinder through the by-pass 29 by reason of the restricted size of this passageway.

of my improved leal-ing and pressure is conduit will eventually valve seat.

.sure is increased to a certain vto a point permitting a before the pressure By successive reciprocations of the plunger, the discharge conduit is complete y filled with lubricant ano' when the prespoint, the .lubricant will be forced into the nipple and the bearing supplied thereby. 'When sufli` cient lubricant has been forced into the released from the will be withdrawn few drops of -the lubricant in the discharge conduit to return lo the cylindctlrough the by-pas's 29, thereby reducing the pressure in the discharge conduit to practically nothing, which will permit the coupling member 18 to, be eas1 ly detached from the nlpple and will, at the hand grip 38, the plunger same time, relieve thepressure on the valve' 54 so .that there is no tendency for lubri- The cou-v cant to be forced past this valve. pling member is then detached from the nipple and attached to the next one and they operation repeated. f

The by-pass' 29 is of such size that but very little of the lubricant will escape dfrom the discharge conduitV during the interval betweenl the detaching of the coupling memlier 18 from one nipple and attachingdit to the next nipple, consequently after the discharge conduit necessary to completely refill it by the operation ot the plunger each time the' coupling member is attached to a different nip- It is merely necessary to replace the lubricant discharged through the by-pass 29 becomes effective to force lubricant into the nipple.

It' the discharge conduit of the nipple is supported in an upright position, as shown in Figure .2, when the apparatus is not in usc, the lubricant in the.discliarge drain b ack info the and thereby prevent any lose of lubricant which might occur by reason of the valve lnot completely closing on account of dust, dirt or other matter sticking to the receptacle While I have preferred embodimentof my invention, 1t is to be lclearly understood that my invention is not limit-ed to these details, but is capable of other adaptations-and modifications within the scope of lhe appended claims.

Having thus described my invention, what I claim is: "f

1. In a lubricant compressor having means for detachably coupling said compressor toa lubricant receiving nipple, the combination of a receptacle, a closure for said receptacle having a filling opening therein, said closure having a second opening, a pump in -saidreceptacle adjacent the bottom thereof, said pump comprising a body member having a 'riser formed inte rally therewith-,said riser extending throug said second openingand having-'an outwardly extending flange closhas once been filled, it is notv described the d'etails of thev ing saidopening, means for securing said flange to said closure, said body member and riser having a discharge passage-way, a check valve in said discharge passage-way.v opening toward said' coupling means, sal body member having an intake passage-way communicating with ceptacle 'and a cylinder connecting said in-l take and discharge passage-Ways, there being a restricted return by-pass between said 'disthev interior of said re'- charge passage-way a-nd vsaid cylinder, a

plunger reciprocable in said cylinder and having a portion extending outside of said receptacle,'means co-acting with said exftending portion whereby said plunger can be forced inwardly,"and a spring for retracting said plunger. 2. In a lubricant compressor having means for detachably coupling said compressor to a lubricant receiving nipple, the combination ofl a receptacle, a closure for said. receptacle, ,szlig/closure having an opening, a pump in sai receptacle adjacent the bottom thereof, said pump comprising a body member having a riser formed integrally therewith, said riser extending through said opening, sacL body member" and riser having a discharge passage-way, a check valve in said discharge passage-way opening toward said coupling means, said body member having an intake passage-way communicating with the interior of said receptacle and a cylinder connecting saidintake and discharge passageway, there being a return by-pass said discharge passage-way and said cylinder, a plunger in said cylindeigand means for reciprocating said plunger.

3. In a lubricant compressor having means for detachably coupling said compressor to a lubricant receiving nipple, the combination ofa receptacle, a closure for said receptacle, said closure having an opening, a pumpin said-receptacle adjacent' the. bottom thereof, said pump comprising a body member having a riser formed integrally. therewith, said risern extending through said opening, said body member and riser having a discharge z passage-way, a check valve in said discharge passage-way opening towards said coupling means, said body member having an intake vpassage-way communicating with the interior of' said receptacle and a cylinder connecting said intake] and discharge passageways, a plunger in said cylinder, and means for reciprocating saidl plunger.

4.v In a lubricant compressor having means for detachably coupling said compressor to a lubricant receiving nipple, the combination of a receptacle, a pu p in said receptacle, said ump comprising a bodymember having lscharge and intake passage-ways and a cylinder connecting the lnner ends of said passage-ways, the outer end of said intake passage-way communicating with the interior of said receptacle, a check valve in said 'discharge passage-way, said body member having a passage-way by-passing said check valve and connecting said discharge passageway and cylinder, a plunger in said cylinder, and means -for reciprocating said plunger.

5. In a lubricant compressor having means for detacliably coupling said compressor to a lubricant receiving nipple, the combination of said discharge passage-way, a plunger in' said cylinder, and means for venting said discharge passage-way into said cylinder when said sition.

6.' In a lubricant compressor having means for detachably coupling said compressor toa lubricant receiving nipple, the combination of a receptacle, a body member having discharge and intake passage-way and a cylinder connecting the inner ends of said passage-ways, the outer en'd of said intake passage-wayv communicating with the interior of said receptacle, means for preventing reverse flow of lubricant through a portion of said discharge passage-way, a plunger in said cylinder, and means for venting said discharge passage-way when said plunger is in a predetermined position.

7. The combination with a receptacle for holding lubricant, of a discharge conduit for conducting lubricant from said receptacle having a coupling member at its free end for making a detachable connection with a lubricant receiving member, means in said plunger is'in a predetermined poi-eceptacle for `forcing the lubricant froml said receptacle through said discharge conduit, and means for venting said dischar e conduit into said receptacle through said forcing means. I

8. The combination with a receptacle for holding lubricant,'of`a discharge conduit for conducting' lubricant .from said 'receptacle having a coupling member at its free end for making a detachable connection with a lubricant receiving member, means in said receptacle for forcing the lubricant from said receptacle through said discharge conduit, and'means controlled by said forcing means for venting said discharge conduit into said l receptacle.

9. A lubricant compressor comprising a lubricant receptacle, a high pressure cylinder communicating therewith, a discharge conduit communicating with said high pressure cylinder, a plunger for expelling lubricant from said high pressure cylinder, and. means for establishing communication between said high pressure cylinder and said receptacle and between said high pressure cylinder and f said discharge conduit when said plunger is retracted to its initial position.

10. A lubricant dispensing device comprising a lubricant receptacle and means for receivinglubi-icant from said receptacle and discharging it under pressure, .comprising a cylinder carried by said receptacle, a plunger reciprocable therein, and means for reducing the pressure upon the discharged lubricant, said means being controlled by the movement ot said plunger.

11. A lubricant dispensing device comprising a receptacle, a high ressure cylinder supported by and communicating with said receptacle, a discharge conduit for receiving lubricant from said high pressure cylinder, means for discharging lubricant from said high pressure cylinder, and means for venting said discharge conduit when said last named means is in a predetermined position.

l2. A lubricant dispensing device comprising a lubricant receptacle, a high pressure cylinder having an inlet port communicating with said receptacle, means for ejecting the contents of said cylinder, a valve chamber communicating with the discharge end of said cylinder, a valve closing the discharge end of said cvlinder, and a by-pass for establishing communication between said valve chamber and said cylinder. 13. A lubricant dispensing device comprising a lubricant receptacle, a high pressure cylin er having;l an inlet port communicating with said receptacle, means for ejecting the contents of said cylinder, a valve chamber communicating with the discharge end of said cylinder, a valve closing the discharge end of said cylinder, and a by-pass for establisliing communication between said valve'. chamber and said cylinder at a point adju-- 

